E-on has released Ozone 4, an update to its atmospheric simulation plug-in for 3ds Max, Maya, XSI, Lightwave and Cinema4D. The software is built on the same algorithms and technology as Vue 7 xStream, but with a focus on atmospheres and skies. Users can choose from four atmospheric models -- spectral, volumetric, standard and environment mapping. Over 100 preset atmospheres and 100 cloud shapes ar